{"id":120322,"date":"2021-01-28T12:02:37","date_gmt":"2021-01-28T11:02:37","guid":{"rendered":"https:\/\/www.dogsie.cz\/?p=120322"},"modified":"2021-01-28T12:02:40","modified_gmt":"2021-01-28T11:02:40","slug":"vidi-pes-svet-pouze-cernobile-nebo-v-barvach-jak-to-ve-skutecnosti-je","status":"publish","type":"post","link":"https:\/\/www.dogsie.cz\/sk\/vidi-pes-svet-pouze-cernobile-nebo-v-barvach-jak-to-ve-skutecnosti-je\/","title":{"rendered":"Vid\u00ed pes sv\u011bt pouze \u010dernob\u00edle, nebo v barv\u00e1ch? Jak to ve skute\u010dnosti je?"},"content":{"rendered":"\n

Zda psi vn\u00edmaj\u00ed barvy stejn\u011b jako \u010dlov\u011bk, a vid\u00ed cel\u00e9 spektrum barev, b\u00fdv\u00e1 st\u00e1le v\u00e1\u0161nivou debatou. Dnes u\u017e v\u00edme, \u017ee pes dok\u00e1\u017ee vn\u00edmat ur\u010dit\u00e9 odst\u00edny barev, ale nerozezn\u00e1 cel\u00e9 barevn\u00e9 spektrum. Poj\u010fme se spole\u010dn\u011b pod\u00edvat, jak to tedy se ps\u00edm vid\u011bn\u00edm vlastn\u011b je.<\/strong><\/p>\n\n\n\n

Abychom pochopili, jak pes vn\u00edm\u00e1 sv\u011bt okolo sebe, pod\u00edv\u00e1me se na rozd\u00edl ve stavb\u011b oka u \u010dlov\u011bka a psa. O\u010di psa a \u010dlov\u011bka jsou si dost podobn\u00e9, ale i tak se mezi nimi najdou podstatn\u00e9 rozd\u00edly.<\/p>\n\n\n\n

Rozd\u00edl v oku psa a \u010dlov\u011bka<\/strong><\/p>\n\n\n\n

Ps\u00ed oko je plo\u0161\u0161\u00ed a \u010do\u010dka nedok\u00e1\u017ee zaost\u0159it tak dob\u0159e jako lidsk\u00e9 oko. Kv\u016fli tomu psi nedok\u00e1\u017eou zaost\u0159it p\u0159edm\u011bty zbl\u00edzka, ale jsou dalekozrac\u00ed. \u010clov\u011bk vid\u00ed jasn\u00fd obraz zhruba do d\u00e1lky 22 metr\u016f, kde\u017eto pes pouze do vzd\u00e1lenosti 6 metr\u016f. I p\u0159esto, \u017ee pes vid\u00ed v podstat\u011b rozmazan\u011b, l\u00e9pe rozezn\u00e1 pohyb a sv\u011btlo ne\u017e my lid\u00e9, co\u017e je zp\u016fsobeno ps\u00ed genetickou v\u00fdbavou, kterou vyu\u017e\u00edval b\u011bhem lovu.<\/p>\n\n\n\n

V lidsk\u00e9m oku (v s\u00edtnici) se nach\u00e1z\u00ed ty\u010dinky a t\u0159i \u010d\u00edpky, kter\u00e9 reaguj\u00ed na zelenou, \u010dervenou a modrou barvu. Pr\u00e1v\u011b d\u00edky nim oko \u010dlov\u011bka dok\u00e1\u017ee rozeznat celou \u0161k\u00e1lu barev. Ps\u00ed oko m\u00e1 pouze dva \u010d\u00edpky, a psi jsou tak omezen\u00ed vid\u011bn\u00edm pouze \u010derven\u00e9 a zelen\u00e9 barvy. <\/p>\n\n\n\n

Psi v podstat\u011b vid\u00ed stejn\u011b jako \u010dlov\u011bk trp\u00edc\u00ed barvoslepost\u00ed. Proto\u017ee jsou ps\u00ed o\u010di tvo\u0159eny p\u0159ev\u00e1\u017en\u011b ty\u010dinkami, vid\u00ed sv\u011bt v odst\u00ednech \u017elut\u00e9, modr\u00e9 a \u0161ed\u00e9. Psi a vlci dokonce dok\u00e1\u017eou rozpoznat v\u00edce odst\u00ednu \u0161ed\u00e9 ne\u017e my lid\u00e9.<\/p>\n\n\n\n

\u010cervenou barvu psi vn\u00edmaj\u00ed jako hn\u011bdou a\u017e \u010dernou. Oran\u017eov\u00e1, \u017elut\u00e1 a zelen\u00e1 barva je pro psy t\u00e9m\u011b\u0159 k nerozezn\u00e1n\u00ed a v\u0161echny tyto barvy vid\u00ed jako odst\u00edny \u017elut\u00e9.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Ale i p\u0159esto by se dalo \u0159\u00edct, \u017ee psi vid\u00ed daleko l\u00e9pe ne\u017e my, alespo\u0148 ve tm\u011b. Za s\u00edtnic\u00ed ps\u016f a dal\u0161\u00edch \u0161elem se nach\u00e1z\u00ed tapetum lucidum<\/em>, kter\u00e9 jim umo\u017e\u0148uje vid\u011bt za \u0161era l\u00e9pe ne\u017e my lid\u00e9. Jejich o\u010di jsou tak\u00e9 citliv\u011bj\u0161\u00ed na pohyb a maj\u00ed v\u011bt\u0161\u00ed zorni\u010dku.<\/p>\n\n\n\n

A jako bonus, o\u010di um\u00edst\u011bn\u00e9 do stran ps\u016fm umo\u017e\u0148uj\u00ed perifern\u00ed vid\u011bn\u00ed.<\/p>\n\n\n\n

Jak vid\u00ed psi v noci?<\/strong><\/p>\n\n\n\n

V t\u00e9to discipl\u00edn\u011b jsou psi oproti n\u00e1m n\u011bco jako olympij\u0161t\u00ed v\u00edt\u011bzov\u00e9. Psi maj\u00ed o mnoho v\u00edce speci\u00e1ln\u00edch receptor\u016f – ty\u010dinek, kter\u00e9 jsou citliv\u00e9 na sv\u011btlo. Dok\u00e1\u017eou maxim\u00e1ln\u011b vyu\u017e\u00edt i sebemen\u0161\u00ed osv\u011btlen\u00ed pro svou orientaci ve tm\u011b.<\/p>\n\n\n\n

Nejlep\u0161\u00ed je fialov\u00e1<\/strong><\/p>\n\n\n\n

V obchodech na n\u00e1s z reg\u00e1l\u016f vyhl\u00ed\u017eej\u00ed hra\u010dky v\u0161ech barev, kter\u00e9 jsou pastvou pro na\u0161e o\u010di. V\u011bt\u0161ina t\u011bchto hra\u010dek je ale pro psy barevn\u011b k nerozezn\u00e1n\u00ed. Pokud si nev\u00edte rady, jak\u00e1 barva bude pro va\u0161eho pejska nejvhodn\u011bj\u0161\u00ed, s\u00e1hn\u011bte po fialov\u00e9, nap\u0159\u00edklad po dinosau\u0159\u00edm vaj\u00ed\u010dku s rolni\u010dkou<\/a>. Fialov\u00e1 barva je pro psy l\u00e9pe rozpoznateln\u00e1 a kdy\u017e budou m\u00edt fialovou hra\u010dku polo\u017eenou na tr\u00e1v\u011b, nebo na jin\u00e9m barevn\u00e9m podkladu, v\u017edy ji bez probl\u00e9m\u016f najdou.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Pro\u010d psi nevid\u00ed jako my?<\/strong><\/p>\n\n\n\n

Z hlediska evoluce nen\u00ed pro psy ani jin\u00e9 \u0161elmy d\u016fle\u017eit\u00e9 barevn\u00e9 vid\u011bn\u00ed. Mnohem d\u016fle\u017eit\u011bj\u0161\u00ed je pro n\u011b no\u010dn\u00ed vid\u011bn\u00ed. Vlci i jin\u00e9 \u0161elmy lov\u00ed p\u0159ev\u00e1\u017en\u011b v \u0161eru nebo v noci, a proto pro n\u011b barvy nejsou tolik pot\u0159ebn\u00e9. Z tohoto d\u016fvodu se jim v\u00edce vyvinuly ty\u010dinky, kter\u00e9 jsou citliv\u00e9 na sv\u011btlo.<\/p>\n\n\n\n

Te\u010f u\u017e v\u00edme, \u017ee i na\u0161i \u010dty\u0159noz\u00ed chlup\u00e1\u010di dok\u00e1\u017eou vn\u00edmat ur\u010dit\u00e9 barvy, a \u017ee jejich \u017eivot nen\u00ed pouze \u010dern\u00e1 a b\u00edl\u00e1. Zaj\u00edmalo by V\u00e1s n\u011bco dal\u0161\u00edho? Dejte n\u00e1m v\u011bd\u011bt!<\/strong><\/p>\n\n\n\n

Zdroje: <\/em>
https:\/\/vcahospitals.com\/know-your-pet\/do-dogs-see-color<\/em><\/a>
https:\/\/www.akc.org\/expert-advice\/health\/are-dogs-color-blind\/<\/em><\/a><\/p>\n\n\n\n

Autor: Lucie Krch\u0148\u00e1kov\u00e1<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Zda psi vn\u00edmaj\u00ed barvy stejn\u011b jako \u010dlov\u011bk, a vid\u00ed cel\u00e9 spektrum barev, b\u00fdv\u00e1 st\u00e1le v\u00e1\u0161nivou debatou. Dnes u\u017e v\u00edme, \u017ee pes dok\u00e1\u017ee vn\u00edmat ur\u010dit\u00e9 odst\u00edny barev, ale nerozezn\u00e1 cel\u00e9 barevn\u00e9 spektrum. Poj\u010fme se spole\u010dn\u011b pod\u00edvat, jak to tedy se ps\u00edm vid\u011bn\u00edm vlastn\u011b je.<\/p>\n","protected":false},"author":11135,"featured_media":120327,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[129],"tags":[],"class_list":["post-120322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tipy-a-triky"],"uagb_featured_image_src":{"full":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci.jpg",1920,1280,false],"thumbnail":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-150x150.jpg",150,150,true],"medium":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-300x200.jpg",300,200,true],"medium_large":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-768x512.jpg",768,512,true],"large":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-1024x683.jpg",1024,683,true],"1536x1536":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-1536x1024.jpg",1536,1024,true],"2048x2048":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci.jpg",1920,1280,false],"blog-featured":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-500x240.jpg",500,240,true],"blog-recommended":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-300x140.jpg",300,140,true],"single-featured":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-850x400.jpg",850,400,true],"review":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-60x60.jpg",60,60,true],"product-card":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-250x250.jpg",250,250,true],"woocommerce_thumbnail":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-600x600.jpg",600,600,true],"woocommerce_single":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-600x400.jpg",600,400,true],"woocommerce_gallery_thumbnail":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci-100x100.jpg",100,100,true],"140-140":["https:\/\/www.dogsie.cz\/wp-content\/uploads\/2021\/01\/pes-oci.jpg",140,93,false]},"uagb_author_info":{"display_name":"Lucie Krch\u0148\u00e1kov\u00e1","author_link":"https:\/\/www.dogsie.cz\/sk\/author\/luciekrchnakova\/"},"uagb_comment_info":0,"uagb_excerpt":"Zda psi vn\u00edmaj\u00ed barvy stejn\u011b jako \u010dlov\u011bk, a vid\u00ed cel\u00e9 spektrum barev, b\u00fdv\u00e1 st\u00e1le v\u00e1\u0161nivou debatou. Dnes u\u017e v\u00edme, \u017ee pes dok\u00e1\u017ee vn\u00edmat ur\u010dit\u00e9 odst\u00edny barev, ale nerozezn\u00e1 cel\u00e9 barevn\u00e9 spektrum. Poj\u010fme se spole\u010dn\u011b pod\u00edvat, jak to tedy se ps\u00edm vid\u011bn\u00edm vlastn\u011b je.","_links":{"self":[{"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/posts\/120322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/users\/11135"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/comments?post=120322"}],"version-history":[{"count":7,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/posts\/120322\/revisions"}],"predecessor-version":[{"id":120397,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/posts\/120322\/revisions\/120397"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/media\/120327"}],"wp:attachment":[{"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/media?parent=120322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/categories?post=120322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dogsie.cz\/sk\/wp-json\/wp\/v2\/tags?post=120322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}